Antitrust cases, which takes years to decide, can’t keep up with technology, experts say

The European Union’s $5 billion antitrust action against Alphabet Inc.’s Google, while historic, ultimately may not prove too onerous.

The reason: Even if Google loses its appeals, novel antitrust cases in the tech sector can take so long that by the time they are decided, the alleged monopolist may already be entrenched, or the entire market has already moved on.